Coastal island ecological energy pile structure and construction method thereof

Abstract

The invention discloses a coastal island ecological energy pile structure and a construction method thereof.The coastal island ecological energy pile structure comprises a pile body assembly, the pile body assembly comprises a precast pile, a pre-buried pipe, a constant-temperature pipe and an injection hose, the pre-buried pipe is arranged in the precast pile, the constant-temperature pipe is fixed in the precast pile, and the injection hose slides in the pre-buried pipe; the bacterium injection assembly is arranged on the injection hose and comprises a fixed pipe, a movable door, a guide part, a stress plate, a transverse plate, a hook plate, a limiting part and a reset part, the fixed pipe is fixed to the surface of the injection hose, a first discharging hole and a mounting groove are formed in one side of the fixed pipe, and a second discharging hole is formed in the embedded pipe. Through the bacterium injection assembly, bacteria and a nutrient solution can be uniformly and efficiently injected to the periphery of the precast pile, so that a calcium carbonate reinforcing layer is formed on the periphery of the precast pile, the pile foundation structure formed after biological curing is more stable, the use amount of concrete adopted by the pile body is smaller, and the environment-friendly effect is better.

Description

Technical Field

[0001] The invention relates to the technical field of ecological energy piles, in particular to a coastal island reef ecological energy pile structure and a construction method thereof. Background Art

[0002] In recent years, with the development of marine economy, islands and reefs, as harbors of the ocean, are of great significance to marine economy and military engineering. Artificial reclamation of islands and reefs is a common form of islands and reefs. Engineers form islands and reefs by sucking and piling up sand and gravel from the seabed. Based on the high porosity of sand and gravel, islands and reefs can reach a relatively stable state in a very short time. However, it is undeniable that consolidated islands and reefs (generally 2 to 5 years) still have a large deformation space because the consolidation process is relatively slow. Therefore, when constructing important facilities on islands and reefs, the foundation still needs to be reinforced. This treatment is generally carried out in the form of pile foundations.

[0003] The construction of island and reef pile foundations is generally carried out in conjunction with the post-grouting process to improve the bearing capacity of the pile foundation. However, this combined reinforcement process has the following defects: 1. Poor stability of the pile foundation: The injection of cement slurry is affected by the stratum cracks and pore distribution, resulting in the inability to accurately predict the slurry diffusion range. As a result, the pile foundation is more discrete and cannot meet the requirements of uniform bearing capacity in the project; 2. Poor environmental performance: The grouting cement slurry is injected into the seawater, and the pollutants in it will pollute the seawater, thereby causing marine ecological pollution. Summary of the invention

[0004] Purpose of the invention: The problem to be solved by the present invention is that the pile foundation has poor stability and poor environmental performance.

[0005] Technical solution: The present invention provides an ecological energy pile structure for coastal islands and reefs, which includes a pile body assembly, including a prefabricated pile, a pre-buried pipe, a constant temperature pipe and an injection hose, wherein the pre-buried pipe is arranged in the prefabricated pile, the constant temperature pipe is fixed in the prefabricated pile, and the injection hose slides in the pre-buried pipe; and an injection assembly, which is arranged on the injection hose and includes a fixed pipe, a movable door, a guide, a force plate, a transverse plate, a hook plate, a limiter and a resetter, wherein the fixed pipe is fixed to the surface of the injection hose, and a first discharge hole and an installation groove are provided on one side of the fixed pipe, a second discharge hole is provided on the pre-buried pipe, the movable door slides in the installation groove, the guide is provided in the installation groove and cooperates with the movable door, the force plate is fixed to the top and bottom of one side of the movable door, the transverse plate is fixed in the second discharge hole, the hook plate is provided on the transverse plate and cooperates with the force plate, the limiter is provided on the transverse plate, and the resetter is provided on the transverse plate and cooperates with the hook plate.

[0006] Furthermore, the pile assembly of the structure also includes a water pressure sensor and an electrode. The prefabricated pile is provided with a third discharge hole connected to the second discharge hole. The water pressure sensor and the electrode are fixed between adjacent third discharge holes.

[0007] Furthermore, the guide member of the structure includes a mounting plate, a guide rod and a first spring, the mounting plate is fixed to the top and bottom of the inner wall of the mounting groove, the guide rod is fixed between the two mounting plates, the movable door slides on the guide rod, and the two ends of the first spring are respectively fixed to the movable door and the mounting plate.

[0008] Furthermore, the limiting member of the structure includes a connecting rod and a second spring, a rectangular groove is opened on the horizontal plate, the connecting rod is fixed in the rectangular groove, the hook plate slides on the surface of the connecting rod, the two ends of the second spring are respectively fixed to the inner wall of the rectangular groove and the hook plate, and a groove matching with the hook plate is opened on the force plate.

[0009] Furthermore, the reset member of the structure includes a push plate, a trigger rod and an inclined plate, the push plate slides on the cross plate, the trigger rod is fixed on both sides of the push plate, the inclined plate is fixed to the inner wall of the mounting groove and cooperates with the trigger rod, and one side of the push plate contacts the hook plate.

[0010] Furthermore, the reset member of the structure also includes a fixed block and a fixed rod, the fixed block is fixed on the transverse plate, the fixed rod is fixed on one side of the fixed block, and the push plate slides on the fixed rod.

[0011] Furthermore, the reset member of the structure also includes a third spring, two ends of which are respectively fixed to the fixed block and the push plate.

[0012] Furthermore, the injection assembly of the structure also includes a guide rail, which is fixed in the embedded tube and located on both sides of the inner wall of the installation groove.

[0013] Furthermore, the pile body assembly of the structure also includes an indicator ring and a limit pile, the indicator ring is fixed to the surface of the injection hose, the limit pile is fixed to the top of the prefabricated pile, and the injection hose slides in the limit pile.

[0014] Furthermore, the structure and the construction method thereof, wherein: also include the following construction steps:

[0015] The pile assembly is buried at a designated location on the island or reef;

[0016] Inject bacteria and nutrient solution into the area around the prefabricated pile from the injection hose;

[0017] The injection position can be manually adjusted through the bacteria injection component to inject bacteria more evenly around the prefabricated pile;

[0018] After the bacteria are injected, calcium carbonate is formed around the prefabricated pile, and the temperature is adjusted by a constant temperature pipe to improve the efficiency of calcium carbonate formation.

[0019] Beneficial effect: Compared with the prior art, the significant advantage of the present invention is that bacteria and nutrient solution can be evenly and efficiently injected around the prefabricated piles through the bacterial injection component, thereby forming a calcium carbonate reinforcement layer around it. The pile foundation structure formed after biological solidification is more stable, so that the amount of concrete used in the pile body is less and the environmental protection effect is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is the overall structural cross-section diagram of the ecological energy pile structure of coastal islands and reefs and its construction method;

[0021] Figure 2 It is the overall structural diagram of the ecological energy pile structure of coastal islands and reefs and its construction method;

[0022] Figure 3 It is a top view of the overall structure of the coastal island and reef ecological energy pile structure and its construction method;

[0023] Figure 4 A cross-sectional view of the injection component of the coastal island and reef ecological energy pile structure and its construction method;

[0024] Figure 5 Another perspective view of the injection component of the coastal island ecological energy pile structure and its construction method;

[0025] Figure 6 It is a structural diagram of the guide member for the ecological energy pile structure of coastal islands and reefs and its construction method;

[0026] Figure 7 It is a structural diagram of the reset parts of the coastal island and reef ecological energy pile structure and its construction method;

[0027] Figure 8 A three-dimensional diagram of the injection component of the coastal island and reef ecological energy pile structure and its construction method;

[0028] Fig. 9 This is a structural diagram of the limiting parts of the coastal island and reef ecological energy pile structure and its construction method. DETAILED DESCRIPTION

[0029] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings.

[0030] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0031] Example 1

[0032] Reference Figure 1 and Figure 4 , which is the first embodiment of the present invention. This embodiment provides a coastal island reef ecological energy pile structure and its construction method. The coastal island reef ecological energy pile structure and its construction method include a pile body component 100 and a bacteria injection component 200. Bacteria are injected around the pile body component 100 through the bacteria injection component 200, thereby forming a calcium carbonate reinforcement layer around it, which greatly improves the stability of the pile foundation.

[0033] Specifically, the pile assembly 100 includes a precast pile 101 , an embedded pipe 102 , a constant temperature pipe 103 and an injection hose 104 . The embedded pipe 102 is disposed in the precast pile 101 , the constant temperature pipe 103 is fixed in the precast pile 101 , and the injection hose 104 slides in the embedded pipe 102 .

[0034] The precast pile 101 is cross-shaped as a whole, and two groups of embedded pipes 102 are provided, which are U-shaped and embedded in the ends of the precast pile 101. The constant temperature pipe 103 can adopt a ground source heat pump method, the purpose of which is to balance the temperature of the precast pile 101 and its surroundings, and provide a better environment for the survival of bacteria. When the bacteria are initially injected, the temperature of the precast pile 101 and its surroundings is lowered through the constant temperature pipe 103. The low temperature can inhibit the growth of bacteria and facilitate the infiltration of nutrient solution. After the bacteria are injected, the temperature of the precast pile 101 and its surroundings is increased through the constant temperature pipe 103. The high temperature can increase the activity of bacteria and accelerate their growth.

[0035] The injection hose 104 slides in the embedded pipe 102, and can inject bacteria evenly and efficiently around the precast pile 101. The bacteria in this part are Bacillus, which reacts with calcium in the seawater around the precast pile 101 to generate calcium carbonate. The hardness of calcium carbonate is relatively high, thereby enhancing the stability of the entire pile foundation.

[0036] The injection assembly 200 is arranged on the injection hose 104, and includes a fixed tube 201, a movable door 202, a guide member 203, a force plate 204, a transverse plate 205, a hook plate 206, a limit member 207 and a reset member 208. The fixed tube 201 is fixed to the surface of the injection hose 104, and one side of the fixed tube 201 is provided with a first discharge hole S1 and a mounting groove P. The embedded tube 102 is provided with a second discharge hole S2. The movable door 202 slides in the mounting groove P. The guide member 203 is arranged in the mounting groove P and cooperates with the movable door 202. The force plate 204 is fixed to the top and bottom of one side of the movable door 202. The transverse plate 205 is fixed in the second discharge hole S2. The hook plate 206 is arranged on the transverse plate 205 and cooperates with the force plate 204. The limit member 207 is arranged on the transverse plate 205. The reset member 208 is arranged on the transverse plate 205 and cooperates with the hook plate 206.

[0037] There are multiple second discharge holes S2, which are evenly and equidistantly distributed outside the embedded pipe 102, and multiple holes connected to the second discharge holes S2 are also opened on the outside of the prefabricated pile 101 to facilitate the discharge of bacteria.

[0038] The outer side of the fixed tube 201 is fitted with the inner wall of the injection hose 104, and an injection hole is opened inside it. The injection hose 104 is also provided with a hole connected to the injection hole. Bacteria and nutrient solution enter the fixed tube 201 from the hole on the injection hose 104, and are then injected into the surroundings of the prefabricated pile 101 through the first discharge hole S1 and the second discharge hole S2. Flexible rubber sheets are fixed to the top and bottom of the fixed tube 201, which can clean the inner wall of the injection hose 104 when the fixed tube 201 moves, remove impurities inside it, and improve its cleaning efficiency. The flexible rubber sheets located at the top and bottom of the installation groove P have good toughness to prevent the fixed tube 201 from interfering with the use of the limit member 207 and the reset member 208 when moving.

[0039] The movable door 202 is arranged to close the first discharge hole S1 when the fixed tube 201 moves, so that it is opened only when it is connected with the second discharge hole S2, so as to improve the recognition ability of the staff, so that they can inject bacteria at the place where they need to be injected, which greatly improves the accuracy and convenience of the operation. The guide member 203 is used to guide and limit the movable door 202 to prevent it from deviating during the movement. There are two force plates 204. When the fixed tube 201 moves, the hook plate 206 will contact the force plate 204 and drive the movable door 202 to open through the force plate 204. When the fixed tube 201 continues to move until the first discharge hole S1 is separated from the second discharge hole S2, the hook plate 206 can be separated from the force plate 204 by the reset member 208, so that the movable door 202 continues to close the first discharge hole S1 to prevent the fixed tube 201 from leaking too much bacteria during the movement. The limiter 207 can limit the hook plate 206 to prevent it from deviating during the movement.

[0040] Example 2

[0041] Reference Figures 1 to 9 , which is the second embodiment of the present invention, and this embodiment is based on the previous embodiment.

[0042] Specifically, the pile assembly 100 further includes a water pressure sensor 105 and an electrode 106. The prefabricated pile 101 is provided with a third discharge hole S3 connected to the second discharge hole S2. The water pressure sensor 105 and the electrode 106 are both fixed between adjacent third discharge holes S3.

[0043] The water pressure sensor 105 is used to monitor the water pressure around the precast pile 101, so as to determine the calcification of the surrounding soil through water pressure feedback, so as to inject more bacteria and nutrient solution into the incompletely calcified position. It adopts existing sensors, and technicians in this field can set it as needed. Its working principle is all existing technology and will not be elaborated here.

[0044] There are multiple electrodes 106, and each group of electrodes 106 is arranged with positive and negative poles crossed from top to bottom. The arrangement of the electrodes 106 can prevent the corrosion of the pile reinforcement on the one hand, and promote the movement of bacteria on the other hand. The electrodes are arranged in segments, and positive and negative poles can be realized on a pile body, guiding the movement of bacteria so that it can perform calcification operations more efficiently and evenly.

[0045] The guide member 203 includes a mounting plate 203a, a guide rod 203b and a first spring 203c. The mounting plate 203a is fixed to the top and bottom of the inner wall of the mounting groove P, the guide rod 203b is fixed between the two mounting plates 203a, the movable door 202 slides on the guide rod 203b, and the two ends of the first spring 203c are respectively fixed to the movable door 202 and the mounting plate 203a.

[0046] The movable door 202 is guided by the guide rod 203b and the mounting plate 203a to prevent it from deflecting during the up and down movement. The first spring 203c applies a force to the movable door 202 to move toward the first discharge hole S1. In the initial state, the movable door 202 can close the first discharge hole S1.

[0047] The limiting member 207 includes a connecting rod 207a and a second spring 207b. A rectangular groove M is opened on the horizontal plate 205. The connecting rod 207a is fixed in the rectangular groove M. The hook plate 206 slides on the surface of the connecting rod 207a. The two ends of the second spring 207b are respectively fixed to the inner wall of the rectangular groove M and the hook plate 206. A groove Y cooperating with the hook plate 206 is opened on the force plate 204.

[0048] There are multiple transverse plates 205, and two transverse plates 205 are arranged inside each second discharge hole S2. They are symmetrically arranged, and the hook plates 206 on each group of transverse plates 205 are staggered to avoid the fixed tube 201 being unable to open the movable door 202 when moving up and down. The connecting rod 207a is used to guide and limit the hook plate 206 to avoid it from shifting during the movement. The thrust of the second spring 207b makes the hook plate 206 have the force to move in the direction of the movable door 202, so that it can better contact with the force-bearing plate 204.

[0049] The grooves Y on each group of two force-bearing plates 204 are staggered so that the fixed tube 201 can open the movable door 202 through two hook plates 206 respectively when moving up and down, that is, the movable door 202 will be automatically opened whenever the fixed tube 201 passes through each second discharge hole S2, without the need for additional operations by the staff.

[0050] The reset member 208 includes a push plate 208a, a trigger rod 208b and an inclined plate 208c. The push plate 208a slides on the horizontal plate 205. The trigger rod 208b is fixed on both sides of the push plate 208a. The inclined plate 208c is fixed to the inner wall of the mounting groove P and cooperates with the trigger rod 208b. One side of the push plate 208a contacts the hook plate 206.

[0051] The push plate 208a is rectangular and is initially located on one side of the hook plate 206. The trigger rod 208b is located on both sides of the push plate 208a. Two groups of push plates 208a and trigger rods 208b are arranged in each second discharge hole S2, and the two groups of trigger rods 208b are staggered. The side of the inclined plate 208c close to the trigger rod 208b is inclined. When the fixed tube 201 moves to the point where the movable door 202 is completely separated from the first discharge hole S1, and the fixed tube 201 continues to move, the inclined plate 208c will push the trigger rod 208b and the push plate 208a to move toward the hook plate 206, thereby driving the hook plate 206 away from the force-bearing plate 204 and the movable door 202 through the push plate 208a, thereby releasing the limiting effect on them.

[0052] The reset member 208 further includes a fixed block 208d and a fixed rod 208e. The fixed block 208d is fixed on the transverse plate 205. The fixed rod 208e is fixed on one side of the fixed block 208d. The push plate 208a slides on the fixed rod 208e.

[0053] The push plate 208a is limited by the fixing block 208d and the fixing rod 208e to prevent it from deflecting during the movement.

[0054] The reset member 208 further includes a third spring 208f, two ends of which are respectively fixed to the fixing block 208d and the push plate 208a.

[0055] The third spring 208f applies a force to the push plate 208a toward the inclined plate 208c, making it easier to reset.

[0056] The bacteria injection assembly 200 further includes a guide rail 209 , which is fixed in the embedded pipe 102 and is located on both sides of the inner wall of the installation groove P.

[0057] Two guide rails 209 are fixed inside each pre-buried tube 102 , and the fixed tube 201 slides on the surface of the guide rails 209 . The guide rails 209 can prevent the fixed tube 201 from rotating during the movement, thereby affecting the efficiency of injecting bacteria.

[0058] The pile assembly 100 further includes an indicator ring 107 and a limit pile 108 . The indicator ring 107 is fixed to the surface of the injection hose 104 . The limit pile 108 is fixed to the top of the prefabricated pile 101 . The injection hose 104 slides in the limit pile 108 .

[0059] There are multiple indicator rings 107, which are evenly distributed on the surface of the injection hose 104. Through the relative position between the indicator rings 107 and the limit piles 108, the staff can conveniently observe where the fixed tube 201 is located with the second discharge hole S2, so that the staff can more conveniently inject to the position where bacteria are lacking.

[0060] Example 3

[0061] Reference Figures 1 to 9 , which is the third embodiment of the present invention, and is based on the first two embodiments.

[0062] Specifically, the prefabricated pile 101 is installed at the designated position of the island reef, and then bacteria and nutrient solution are injected around the prefabricated pile 101 through the injection hose 104 to perform a calcification operation. In this step, the bacteria and nutrient solution are first evenly discharged to each second discharge hole S2. After a period of calcification, the water pressure sensor 105 is used to monitor the water pressure around the prefabricated pile 101, so as to determine the calcification status of the surrounding soil through water pressure feedback.

[0063] When it is found that the calcification effect around part of the second discharge hole S2 is not good, it is necessary to continue to inject bacteria and nutrient solution into this position. At this time, the injection hose 104 is manually pulled to make the fixed tube 201 move in the embedded tube 102. When the fixed tube 201 moves from top to bottom to the first discharge hole S1 and is connected with the second discharge hole S2, the hook plate 206 at the top will hook the force plate 204 at the bottom, thereby opening the movable door 202 during the movement of the fixed tube 201. After the injection is completed, the fixed tube 201 continues to move, and the inclined plate 208c will push the trigger rod 208b and the push plate 208a to move in the direction of the hook plate 206, thereby driving the hook plate 206 away from the force plate 204 and the movable door 202 through the push plate 208a, releasing the limiting effect on them, and pulling the movable door 202 back to its original position through the first spring 203c to close the first discharge hole S1.

[0064] When the fixed tube 201 moves from bottom to top to connect the first discharge hole S1 with the second discharge hole S2, the hook plate 206 at the bottom will hook the force plate 204 at the top, thereby opening the movable door 202. Therefore, the device can perform designated bacterial injection at any position, greatly improving the convenience of operation.

[0065] After calcification is completed, the injection hose 104 and other structures can be removed so that the pile foundation can be used normally.

Claims

1. A coastal island reef ecological energy pile structure, characterized by: include, A pile assembly (100) comprises a prefabricated pile (101), a pre-buried pipe (102), a constant temperature pipe (103) and an injection hose (104), wherein the pre-buried pipe (102) is arranged in the prefabricated pile (101), the constant temperature pipe (103) is fixed in the prefabricated pile (101), and the injection hose (104) slides in the pre-buried pipe (102); and The bacteria injection assembly (200) is arranged on the injection hose (104), and comprises a fixed tube (201), a movable door (202), a guide member (203), a force plate (204), a transverse plate (205), a hook plate (206), a limit member (207) and a reset member (208); the fixed tube (201) is fixed to the surface of the injection hose (104), and one side of the fixed tube (201) is provided with a first discharge hole (S1) and a mounting groove (P); the embedded tube (102) is provided with a second discharge hole (S2), and the movable door (202) slides in the mounting groove (P) The guide member (203) is arranged in the installation groove (P) and cooperates with the movable door (202), the force-bearing plate (204) is fixed to the top and bottom of one side of the movable door (202), the transverse plate (205) is fixed in the second discharge hole (S2), the hook plate (206) is arranged on the transverse plate (205) and cooperates with the force-bearing plate (204), the limiting member (207) is arranged on the transverse plate (205), and the reset member (208) is arranged on the transverse plate (205) and cooperates with the hook plate (206).

2. The coastal island and reef ecological energy pile structure as claimed in claim 1, characterized in that: The pile body assembly (100) further comprises a water pressure sensor (105) and an electrode (106); a third discharge hole (S3) connected to the second discharge hole (S2) is provided on the prefabricated pile (101); and the water pressure sensor (105) and the electrode (106) are both fixed between adjacent third discharge holes (S3).

3. The coastal island and reef ecological energy pile structure as claimed in claim 2, characterized in that: The guide member (203) comprises a mounting plate (203a), a guide rod (203b) and a first spring (203c); the mounting plate (203a) is fixed to the top and bottom of the inner wall of the mounting groove (P); the guide rod (203b) is fixed between the two mounting plates (203a); the movable door (202) slides on the guide rod (203b); and the two ends of the first spring (203c) are respectively fixed to the movable door (202) and the mounting plate (203a).

4. The coastal island and reef ecological energy pile structure as claimed in claim 3, characterized in that: The limiting member (207) includes a connecting rod (207a) and a second spring (207b), a rectangular groove (M) is provided on the transverse plate (205), the connecting rod (207a) is fixed in the rectangular groove (M), the hook plate (206) slides on the surface of the connecting rod (207a), the two ends of the second spring (207b) are respectively fixed to the inner wall of the rectangular groove (M) and the hook plate (206), and a groove (Y) matching with the hook plate (206) is provided on the force-bearing plate (204).

5. The coastal island and reef ecological energy pile structure as claimed in claim 4, characterized in that: The reset member (208) comprises a push plate (208a), a trigger rod (208b) and an inclined plate (208c); the push plate (208a) slides on the transverse plate (205); the trigger rod (208b) is fixed on both sides of the push plate (208a); the inclined plate (208c) is fixed on the inner wall of the mounting groove (P) and cooperates with the trigger rod (208b); one side of the push plate (208a) contacts the hook plate (206).

6. The coastal island and reef ecological energy pile structure as claimed in claim 5, characterized in that: The reset member (208) further comprises a fixed block (208d) and a fixed rod (208e), wherein the fixed block (208d) is fixed on the transverse plate (205), the fixed rod (208e) is fixed on one side of the fixed block (208d), and the push plate (208a) slides on the fixed rod (208e).

7. The coastal island and reef ecological energy pile structure as claimed in claim 6, characterized in that: The reset member (208) further comprises a third spring (208f), two ends of which are respectively fixed to the fixed block (208d) and the push plate (208a).

8. The coastal island and reef ecological energy pile structure according to claim 6 or 7, characterized in that: The bacteria injection assembly (200) further comprises a guide rail (209), which is fixed in the embedded pipe (102) and is located on both sides of the inner wall of the installation groove (P).

9. The coastal island and reef ecological energy pile structure as claimed in claim 8, characterized in that: The pile body assembly (100) further comprises an indicator ring (107) and a limit pile (108), wherein the indicator ring (107) is fixed to the surface of the injection hose (104), the limit pile (108) is fixed to the top of the prefabricated pile (101), and the injection hose (104) slides in the limit pile (108).

10. A construction method for coastal island and reef ecological energy pile structure, characterized by: The energy pile structure according to any one of claims 1 to 9 further comprises the following construction steps: burying the pile assembly (100) at a designated location on an island or reef; Inject bacteria and nutrient solution into the area around the prefabricated pile (101) from the injection hose (104); The injection position can be manually adjusted through the bacteria injection assembly (200) to more evenly inject bacteria around the prefabricated pile (101); After the bacteria are injected, calcium carbonate is formed around the prefabricated pile (101), and the temperature is adjusted by the constant temperature pipe (103) to improve the efficiency of calcium carbonate formation.

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